A wing-like triangular membrane. Although a pterygium can be anywhere, including behind the knee, it commonly refers to a winglet of the conjunctiva. This pterygium may extend across the white of the eye, toward the inner corner of the eye. It is caused by prolonged exposure of the eyes to wind and weather, or it can be an inherited disorder caused [..]

(tur-IH-jee-um). Abnormal wedge-shaped growth on the bulbar conjunctiva. May gradually advance onto the cornea and require surgical removal. Probably related to sun irritation.

(n) either of two thickened triangular layers of conjunctiva extending from the nasal edge of the eye to the cornea; it arises from irritation of the pinguecula

Pterygium is an eye disease characterised by a fleshy growth on the eye‘s surface.

An abnormal triangular fold of Membrane in the interpalpebral fissure, extending from the Conjunctiva to the Cornea, being immovably united to the Cornea at its apex, firmly attached to the Sclera thr [..]

An abnormal triangular fold of membrane in the interpalpebral fissure, extending from the conjunctiva to the cornea, being immovably united to the cornea at its apex, firmly attached to the sclera thr [..]

An abnormal growth of tissue on the conjunctiva (the clear membrane that covers the white of the eye) and the adjacent cornea (the clear front surface of the eye).